Armature-banding device.



'No. 720,308; v PATENTEDIFEB. 10, 1903.

S J. J. WOOD.

ARMATURE BANDING DEVICE.

APPLICATION FILED JULY 12, 1902.

J v S H0 MODEL.

INVENTOR:

Wi-ZQQ WITNESSES:

- UNITED STATES PATENT OFFICE.

JAMES J. WOOD, OF FORT WAYNE, INDIANA.

ARMATURE-BANDING DEVICE.

SPECIFICATION forming part of Letters Patent N 0. 720,308, dated February 10, 1903.

Original application filed February 26, 1902, $erial No. 95,705. Divided and this application filed July 12, 1902. Serial No. 115,372. (No model.)

To all whom, it may concern:

Be it known that I, JAMES J. Woon, acitizen of the United States, residing at Fort Wayne, in the county of Allen and State of Indiana, have invented certain new and useful Improvements in Armature-Banding Devices, of which the following is a specification.

My invention aims to provide certain improvements in devices for applying bands to armatnres, and especially for tightening and holding the same in position to be fastened thereon.

My invention relates especially to devices for applying bands of the type shown in my application for patent Serial No. 95,705, filed February 26, 1902, of which application the present application is in part divisional.

Referring to the accompanying drawings, illustrating embodiments of my invention, Figure 1 is a side elevation of the banding device in operation. Fig. 2 is a longitudinal section through the lower part of Fig. 1. Fig. 3 is a plan view of a portion of Fig. 2, and Fig. 4 is an elevation of another form of the invention.

The device of my invention is designed for temporary engagement with the ends of a band extending around an armature oraround part of an armature to hold the windings of the latter in place. This temporary device draws the ends together and holds them in place for the application of the regular locking member, after which the temporary device is withdrawn.

To this end the device comprises a pair of engaging a strip near its ends and means for forcing or drawing said members toward each other sufficiently to permit the application of the regular locking member. In the specific form of the device shown, and applicable to the band described in my previous application, both the band and the banding device are provided with cooperating interengaging provisions whereby the banding device temporarily engages the band near its ends.

Referring to the embodiments illustrated in the accompanying drawings, A A represent the end portions of a flat armature-band, which end portions are to be drawn and held together to apply the band to the windings of the armature. The ends A and A after being drawn as tightly around the windings of the armature as possible are held together by a substantially permanent clip or looking member B by reason of the overhanging flanges C of the band being engaged bythe corresponding flanges D of the locking member. The drawing together of the ends A and A in order that the clip B may be forced laterally over the flanges O is the purpose of the banding device which forms the chief subject of this application. For this purpose the end portions A A of theband have suitable provisions, such as apertures E, for engagement with corresponding provisions,sucl1 as projections F, which latter are carried by the two members of the banding device and which members are adapted to be forced on drawn together, as'explained. The projections F are carried, preferably, immediately upon the inner faces of members which bear on the outer face of the band-such, for example, as clamps GG', which in turn are pivoted of the levers and to permit the inner ends thereof to be drawn toward each other. The distance apart of the outer ends of the levers H H is variable. H is preferably permanently pivoted at one end of the bar J, and the lever H is adapted to be engaged with any one of a series of holes K by means of a pivotal'pin L. The inner ends of the levers H H may be drawn toward each other bymeans of a bolt M passing through the two levers. The inner face of the bolthead N and also that of the nut O is convex and cooperates with the concave bearingfaces, Fig.2, on the levers H H toinsure a good bearing at difierent angles, the apertures P in the levers being flared inwardly to permit the necessary angular movement relatively to the bolt. The bolt may be prevented from turning by means of a pin Q in the lever H, the outerend of which lies in a longitudinal slot R in the bolt-head N, suitably shaped to permit the necessary angular relative movement.

The projections F on the opposite members For this purpose the lever ICC of the banding device are preferably inclined inward, as shown, and the apertures E in the band are suitably undercut to correspond with the inclination of these projections. The outer ends of the two members of the banding device are held, by means of the bar J, against any tendency to cant inward as the bolt is drawn up. Accordingly the inner ends of the members carrying the projections F increase the security of engagement by increasing the angle at which the projections F out under the band as the same is tightened. This is an important feature in preventing the separation of the banding device from the hand during the application of the latter. The pivoting of the clamp G to the inner ends of the levers H H causes them to lie with an even bearing on the band regardless of the variation in angle of the levers H and H relatively to each other. I have designed a form of the device, however, in which there is no variation in angle of the two members of the device relatively to each other as they are drawn together and in which accordingly there is no necessity of pivoting the clamp. As shown in Fig 4:, this device comprises a pair of members having horizontal portions Gr Gianalogous to the clamps G G of Fig. 1 and provided with projections F, which incline inwardly and which may, in fact, be undercut at both sides, as indicated. The clamping portions G G are formed with integral upward extensions H H which serve, like the levers H H of Fig. 1, for applying the power to draw the two members together. For this purpose a bolt M draws the uprights H 11 together near their lower portions, while the upper ends thereof are held against inward canting and consequent separation of the projections F from the band by means of a bolt J, both bolts M and J being screw-threaded through the member H Though I have described with great particularity of detail apparatus embodying my invention, yet I am not to be understood as limiting the invention to the specific apparatus shown and described. Various modifications thereof are possible to those skilled in the art without departure from the invention.

What I claim, therefore, is-

l. A device for applying armature-bands, comprising in combination a pair of members having provisions for temporarily engaging a band near its ends, means for forcing the inner ends of said members toward each other, and means for holding apart from each other the outer parts of said members.

2. A device for applying armature-bands comprising in combination a pair of members adapted to bear on the outer face of the band and having on their inner faces provisions for temporarily engaging a band near its ends,and whereby they may engage said band without entering between the band and the armature, and means for drawing said members toward each other.

3. A device for applying armature-bands, comprising in combination a bar, a. pair of members pivotally connected to said bar at their outer ends and having at their inner ends provisions for temporarily engaging a band near its ends, and means for drawing the inner ends of said members toward each other.

4. A device for applying armature-bands, comprising in combination a bar, a pair of members having at their inner ends provisions for temporarily engaging aband near its ends, means for pivotally connecting said members at their outer ends to said bar at variable distances from each other, and means for drawing the inner ends of said members toward each other.

5. A device for applying armature-bands, comprising in combination a pair of lovers, clamps pivoted on the inner ends of said levers and having provisions for temporarily engaging a band near its ends, and means for drawing the inner ends of said levers toward each other.

6. A device for applying armature-bands, comprising in combination a bar, a pair of members having at theirinner ends provisions for temporarily engaging a band near its ends, and pivotally-connected to said bar at their outer ends at variable distances from each other, a bolt connecting the inner ends of said members, means for holding said bolt against rotation, and a nut on said bolt for drawing said inner ends toward each other.

7. The combination with an armature-band having shoulders at its ends, and a locking member having corresponding shoulders engaging the shoulders on said strip to hold said ends together, of a device for drawing the ends of said band together to permit engagement thereof. by said locking member, said band and device having cooperating interengaging provisions whereby said device may temporarily engage said band.

8. The combination with an armature-band having shoulders at its ends, and a locking member having corresponding shoulders engaging the shoulders on said band to hold said ends together, of a device for drawing the ends together to permit engagement thereof by said locking member, said band and device having interengaging undercut recesses and projections whereby said device may temporarily engage said band.

9. The combination with an armature-band, of a device for drawing the two ends thereof together, said band having undercut recesses, and said device having undercut projections adapted to enter said recesses to temporarily engage said band.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

JAMES J. WOOD.

Witnesses:

W. II. CRIGHTON, A. L. HADLEY. 

